Volunteering

1. Volunteering decreases cognitive decline in humans.

   Humansamong ε4 carriers≤ 4 hours/week

   Prosocial helping behaviors attenuate accelerated cognitive decline driven by APOE ε4 · Alzheimer's & dementia : the journal of the Alzheimer's Association · 1 Sep 2026

1. Volunteering decreases DunedinPoAm in humans.

   “while GrimAge and DunedinPoAm showed deceleration with higher level volunteering (100+ hrs per year).”

   Humanshigher level volunteering (100+ hrs per year)venous blood100+ hrs per year

   VOLUNTEERING AND EPIGENETIC AGE AMONG RETIRED AND WORKING OLDER ADULTS: EVIDENCE FROM HEALTH AND RETIREMENT STUDY · GSA 2024 abstract · 31 Dec 2024

DunedinPoAm →

1. Volunteering decreases GrimAge in humans.

   “while GrimAge and DunedinPoAm showed deceleration with higher level volunteering (100+ hrs per year).”

   Humanshigher level volunteering (100+ hrs per year)venous blood100+ hrs per year

   VOLUNTEERING AND EPIGENETIC AGE AMONG RETIRED AND WORKING OLDER ADULTS: EVIDENCE FROM HEALTH AND RETIREMENT STUDY · GSA 2024 abstract · 31 Dec 2024

GrimAge →

1. Volunteering decreases Horvath clock in humans.

   “low to medium level volunteering (1-50 hrs per year) predicted slower aging for Horvath and Hannum clocks”

   Humanslow to medium level volunteering (1-50 hrs per year)venous blood1-50 hrs per year

   VOLUNTEERING AND EPIGENETIC AGE AMONG RETIRED AND WORKING OLDER ADULTS: EVIDENCE FROM HEALTH AND RETIREMENT STUDY · GSA 2024 abstract · 31 Dec 2024

Horvath clock →

1. Volunteering is associated with biological age in humans.

   “higher cumulative volunteering index was related with slower epigenetic aging acceleration for all clocks.”

   Humanshigher cumulative volunteering index across all clocksvenous blood

   VOLUNTEERING AND EPIGENETIC AGE AMONG RETIRED AND WORKING OLDER ADULTS: EVIDENCE FROM HEALTH AND RETIREMENT STUDY · GSA 2024 abstract · 31 Dec 2024